Jacquard mechanism for embroidering-machines.



. J. A. GROEBLI; .JAGQUARDMECHANISM POB, EMBROIDBRING MAGHINBS.

l APLIoA-TION FILED JUNE 23,1906.l

.Patented Feb. 2

R SHEETS-SHEET 1.

Winesses:

UNITED STATES yiPaTirixiT OFFICE.

JOSEPH A.;GROER'L1, or NRW YORK, N. Y., AssrGNoRTo THEKURSHERDTMANUFACTURING f oOMrANY, or New YORK, N. Y., A CORPORATION or'NEW YORK.

JACQUARD MEoHANrsM FOR EMBRornERING-Mncnmns.

Specification of Letters Patent.

Patented Feb. 2, i909.

To all 'whom it may concern: i I

Be it known that I, JOSEPH A. GROEBLI, a citizen of the United States,residing in the borough of Manhattan, city, county, and

Sta-teof N en' York, have invented 'certain new and'useful Improvementsin Jacquard Mechanism for Embrcidering-Machines, of

' which the following is a specication.

My invention re ates to jacquard mechan- Ism for embroidering machinesand has' speclal reference to 1m roving the Jacquard operated stop )ingmec anism of the general.

type shown, escribed and claimed in U. S. Letters Paten-t No. 607,234,granted to The Kursheedt Manufacturing Company..4 i Itwill beunderstood, however, that I do not intend to conne the present inventionstrictly to improvements upon the machine referred to in the said patentnor to the machine set forth in U. S. Letters Patent No. 528,632. p g

The primaryI bbject of the present invention is to produce 4a sto-motion mechanism in which 4tvvo classes ofstops are rovided for ,oneclass being those produced y hand, and b the normal functions of themachine; and the other what are called safetysto s being those arisingfrom a vital defect in t e operation of the machine necessitating itsimmediate stop' age With certainty toavoid accident. In t 1e secondclass of stops itis' of the greatest importance that the-operation ofstopping the machine should take place-at once and` with absolutecertainty., To this end I have devised means whereby the auto maticsafety stop mechanism is as a' Whole, vhen thrown into action,positively actuated by power derived from the machine and locks itselfout of action upon the completion of the stop thus .holding lthe machineat rest before any damage can occur.y

In the accompanying drawing I have shown Va mechanism in which one formof my invention is embodied;

awa plan view of a power-driven j ac uard mec ianism of the type andcharacter o that shown in the two Letters latent herein before recited.Fig. II is a broken away side. elevation'cf the same. Fig. III is anendfelevation of a portion of the machine embodying positively actingrautomatic safety stop mechanism. Fig'. IV is a similar vewbroken' awayand in section. Figs. V and `VI are In this drawing: Figure I is abroken.

sectional side views vof the said mechanism showingthe parts in twodifferent posiof; D2, the setting-handle; D1?, the yoke of lthe handsetting mechanism D3 D, the

shafts carrying. thespur-gears cooperating *with the moving racks J3. Inthe present Icase the safety connections are lettered L23 and 0.24. f

H is the moving-arm, which by suitable mechanism is cou led with theracks to move them, and thus effect the fabric-frame movements, and P isthe shaft, operated in conseuence of the failure of the shear-blades .toc ose. Movement of the shaft P moves the safety 'connection 0.24. `Theother safety connection w23, as in thecase in the mechanism illustrated;in my said l, patent, vleads to the tions, and Fig. VIIlis a sectionalplan view of tracer .which traces the pattern, as will be seen byreferring to Fig.v of my said patent. 'The ordinary or normal stopdevices are, in the present instance, las follows: R is the band or cordwhich runs ,around the machine and which upon bein ,ulled Will eifectthe stopping orstarting `o '-t le machine. This is motion and coperatesI'th the 'mechanism for stopping the machine; as will behereinafterdescribed. The other stop device comprehends the jacquardlitter 7c", which is operated by the jacquard to lift the hook 33 asWill-be explained. By referring to Fig. 1 it will likewise be noticedthat adjacent to the shaft F, which serves tb shift the double racksvJ3, 6to., is a rising-and-falling pin or bolt F10, Which serves todisconnect some of the* double racks when it is desiredto set themechanism by the handle D20,- as fully set forth 4in my patentaforesaid..

All'these parts which I have just referred to and designated aresimilar, have similar functions to and operate similarly to the partsdesignated by the same reference-letters in my said patent, and it willbe understood,Wit

outfurtheiexplanation that these,

the actuating means fori the ordinary stop n ico 60 lip 32.

parts have connected with them correlated mechanism for effecting thefull functions set forth in the said patent.

The shaft I carries the usual fast and loose pulleys 1 '2, which may bebelted to a counter-shaft or other source of power in any usual manner.

loop or eye 3 of a belt-shipper 4, which is shown as plivoted at 5 to abracket 6 and pro# vided ,wit a rearwardly-extending arm 7,

notched at 8, to receive the c'arn 9 of an arm or cam-lever 10. Thiscam-lever, as is clearly shown in Fig. 2, is double-armed and ispreferably 'made in the form shown-that is to say, is providedwith ahub# 11, from which an arm 13'projects upwardly. YThis arm 13 isprovided at or near its extremity with bearings 15 16. 'The arm 10 maybe hung loosely Yu'jion a stud 17 on the main A frame A. This arm orcam-lever 10, as will be understood, by bearing against the tailieee orarm 7 of the belt-shipper shifts the belt from the fast to the loosepulley.

Sliding in guides a. e on the bracket 6 or the main frame of the machineis a holder I) for a brake shoe c, which is ada ted to bear aglainstthe. inner face of the pu ley, so that W en actuated as hereinafterdescribed it will contact with such face and bring the machine graduallyto rest. The yprimary means for actuating the brake'c is arising andfalling rod d secured at one end to the brake shoe holder and at theother to a coupling c into `which it is screw threaded. A screw fprovided with a ca g is carried by the coupling and a spring 7i1ntervenes between the 'said ca g and the coupling t lcarried by thevertically sliding rod j. The rod d carries a collar lc having an '40arm or abutment Z which is adapted to ceoerate with a cam m on the huboof the belt s Lpping lever Il.

stud 17, and is provided with a siaft 22 l made rigid therewith, runningacross the machine and provided at its op insite end with an arm 23,with which the and R of .the hand stopping mechanism is connected. The

arm 1.3 carries a trip 24. This trip 24 is pro- 5'01v1ded with a stud25, lwhich is journaled in the bearing 16 of the arm 13, andis likewiseprovided-with an arm 264 and with toes'or abutments 27 28, one of whichabutments 28 is rounded to allow the trip-arm 21 to slip past when itismoved' to the left. The arm ,13 is also provided with a coupling-piece29,

which has a stud 3l) journaled in the hearing with a hook-shaped end 38,adapted to be The belt passes through theA trip-arm 21 is loosely hung uon thev engaged with the ledge or -lip 32 of the coupling 2L This rod orc npling receives an oscillating movement from the arm .ll and is underdirect control of a jacquard connection lc", preferably of the. ty peillustrated in my lis as follows: It will be understood that swingingthe arm 1() downward will cause the belt to be shipped and the machinestopped.4 This shippingmay bo effected in several ways. It may be doneby hand by moving the cord lt, thereby swinging the arm 23 and itsconnected t'ripearm 21 to the left. This trip-arm striking against the.toe 28 of the tri) swings the arm 26 of the trip from under tie step31(L of the coupling :ind allows the coupling to fall until ils lip 3i'is in' such a position as to he'engaged by the hook 34 of theoscillating connection 32S. As this` oscillating connection 33 moves tothe right the coupling will slide `onder the hook, -which will dropbehind it,jand as the oscillating connection moves forward it will pullupon the said coupling and carry the said con pling with it, therebyswingiiw the arm 13, which is connected to the coupling, to the left andswinging the arm 10 downward it may be -done bythe jacquard at'preiletermined times by lifting the jacquard connection lr" to raise thehook 33 into engagement with the lip 32 of the coupling piece 20. Then1ochanical effect of swinging the arm 10 downwardly is to cause its cam9 to act npon the arm 7 to `swing the belt shipper, and the com 9 onsaid arm to raise the rod d to put the brake into action. A reversemovement of the cord R and arm 23 will start the machine. This isusually done by hand after the normal vstops vim-thc stop made by handor the stop made by the normal operation of the jacquard.- Theautomatically operated stop motion, which I call the safety stop incontradistinction to the jac unrd stop and hand stop is operatedentirely )y positively acting means and automatically comes into actionwhen by reason of some emergency, the machine must be stopped at once. lwill lirst describe the moans for throwing it into netiou, and then theineens itself. 1

Mounted in a sleeve upon thel frame work of the machine in a shalt omii-lying a huh q lnwingit lng i" receiving the rod ai" provided with acoller fr 'for actuating the lng r to oscillate the shaft p. The shnfl pis also pro The arm 13 is liken iso prol llio adapted to cooperate withthe rod w23 to swing the shaft'p. `An arma is fast on the shaft pand isprovided With a rod o which it is adaptedr to move longitudinally in abracket-or support w on the main frame of the machine. of the rods @23or a2* may be actuated to throw the stop motion mechanism into action.

which coperates with the' shear blades. It will be remembered that inorder toputv on the brake it is necessary to raise its support ing andactuating rod alle rlhis is done auto.

adapted to receive a helical spring 43" adapted to-bear upon the lateralarm 44, on the tail of a pawl 45 pivoted at 46 and having a tooth 47adapted to'engage in theratchet'y 40. The pawlis likewise provided witha nose 48 adapted to rest upon the e'nd or other ortion of the rod v bywhich it supporterl clear of the ratchet. The lower end 49 of the rod y'rests upon the edge of the cam 41 and is given a lifting movementas willbe hereinafter explained at the beginning of the movement ofrotation ofthe cam, so as to lift the rodd and apply the brake blocker shoe to therim of the fast pulley. Sliding freely" I in the frame ofthe machine isa rod 50. This Tod-, 50 is provided. With an arm 51v which takes overthe arm 10 and a pointedpin 52 which normally restsin a recess 53 on theside of the disk cam. 41, being held therein by bearing against theplate or hanger 52". The rear end of the pin52 cooperates at the end ofits movement with the edge 52a of thev hanger or plate 52b to firmlylock the parts in= place as Will be explained, so that after the safetystop has completed its function, vno further movement of the jacquardcan. take place until the lock has been released and the mechanismresetbya competent mechanic.

The operation of the mechanism just described is as follows: ."hen themachine is in operation the belt is on the fast pulley 1 and the artsare in thel positions shown in Figs. l, lnl and V. A movement ofeitherof, the rods a, a24 Will oscillate the shaft p and withdraw the end ofthe rod v from beneath thenosc 48k of the pawl 45, and.

- allowthe pawl 45 to dro to engage its tooth Y 47 in the ratchet40.

the ratchet to the cam 41 so as to rotate with 65 it. Movementof the cam41v effects the folj lt will be understood that either In the presentcase, `the rod @23 isconnected to the tracer ofthe fabric frameand therod af is connectedtothe shaft P his serves to cou le 'j vided with ahiib s having a ldg or bracket `tllirvving operations: The pin* 52 ofrod. '50

` being-positively pressed into the socket 53 in the cam; '41 movesvWith the belt and when the 'shipping is completed the bracket or hangervto lock the mechanism.

the rod j, which operates to apply the brake shoe by lifting the rod d.ln the automatic operation' of applying the brake shoe the 'spring'coupling intervening between the elastic coupling, wearfof the brakeshoe is compensated for. 'After the automaticY safety st motionmechanism has gone into action an 'has completed its function, it .willbe necessary to reset it by hand which is v--s cting the embroideringmachine to correct tliil trouble which caused the mechanism to go intoaction. Such is not the case with the hand .and jacquard stops.

Claims i.-

- 1. The combination of a pattern controlled apparatus and a patternmechanism therefor lhaving a normal stop-motion mechanism, a safetystop-motion mechanism and means for positively actuating the said safetystopmotion mechanism and actuated by a portion of the said patterncontrolled apparatus.

having a normal stop-motion mechanism,` a

safety stopmotion mechanism and means derivingits power from the patternmechanism foroperating said safety stop-motion- -mechanism and actuatedby said plattern controlled mechanism.

mechanism t ereforl having a normal non# locking stop-motion mechanism,and a safety. locking sto -motion mechanism with means for positive yoperating the said locking stopmotion mechanism and said latter meansbethe said pattern controlled mechanism.

4. The combination of a pattern controlled motion mec anism, saidpattern mechanism'.

5. The combination of a pattern controlledhaving a normal stop-motionmechanism,l a

deriving its portier from the pattern mechanf pin 52 restsagainst thestop 52@l ontheI The movement-also causes thecamto. raiseusually done bya skilled mechanic after in- 2. The combination of a pattern controlled7 apparatus and a `pattern mechanism therefor a portion of the hecombinationof mechanism` con-v trolled by a attern mechanism, a patternapparatus and a patternl'mechanism therefor'y safety stop-.motionmechanism and means l8O rods d and y' .permits a slightlostmotion whichis taken upon release. By having an' ing adapted to be actuated by aportidnoff pparatus and a pattern mechanism therefor having anormal'stop-motion mechanism, a' safety stop-motion mechanism and meansfor positivel 4 actuating the said safety stop.- last' means beineadapted to be controlled by a part of the said:

ism for operating said safety stop-motion mechanism, said' latter meansbeing controlled by a portion of the pattern mechanism.'

6. The combination of mechanism controlled by a pattern mechanism, apattern 'mechanism therefor, having a normal nonlocking stop-motionmechanism, a safety 'locking sto -niotion' mechanism and-nieai'is 8.-The combination in a pattern controlled apparatus el" a plurality el'stop-motion devices, the operating means et one oiY which stop-motiondevices .is driven by power derived from the machine, means 'lorlocking' said positively driven stop-iiiiotion device and means wherebythe operation el" the positively operated stop-motion will lock theother stop-motion` t). lii a stop.iiiotion iiiw'iienism, the eem-Avbiiiiitieii oi belt shifting means, braking means, a rotating ratchet,a normally stationary pawl having means lor :uitiiziting thebelt-shitting and braking means, and means allowing the engagement ofthe pawl with the ratchet to secure movement of said paw] and its allieddevices.

l0." Ina stop-motion mechanism, the coinbination of a belt shipper, abrake, and coinnonnieans for operating the belt-shipper and brake,saidbrake being adapted to be yoperated independently of saidconinionoperating means. A

l l. ln a stop-motion mechanism, the conibination of a belt-shipper, abrake, a conmion .iositively operating means for o erating saidbelt-shipper and brake and a loe i for locking said devices after suchoperation.

12. ln a stop-motion mechanism, the eembination of a ratchet with meansfor rotating the saine, cam means, a pawl in operative connection withsaid cam means and adapted to engage the ratehet, means for e`ectingengagement between the pawl and ratchet, a stopping device, and anoperating connection between the cam means and the stepping device.

13. ln a stop-nietion-mechanism the coin- Vbination ot two differentcharacters et independ ent-ly operated stop-inotion mechanisms, a commonmeans for actuating them, part oi' which constitutes an interlockingmeans, and means for locking the said operating ineens when it hasoperated;

JOSEPH A. GHOEBLI. hlitiiesses:

Tfno. D. WEEKS, (liso. E. Mense.

Ai (l

